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Add AppHost details to the components article #129
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Dec 5, 2023
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607ff38
Initial bits
IEvangelist 80da0d0
More example updates
IEvangelist 8cdd77d
Fix an misrepresentation in config
IEvangelist a9402a3
Add space after xref
IEvangelist ee6a216
Fix and simplify example
IEvangelist 650f4b0
Another missing change
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19 changes: 19 additions & 0 deletions
19
docs/snippets/components/AspireApp/AspireApp.AppHost/AspireApp.AppHost.csproj
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,19 @@ | ||
| <Project Sdk="Microsoft.NET.Sdk"> | ||
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| <PropertyGroup> | ||
| <OutputType>Exe</OutputType> | ||
| <TargetFramework>net8.0</TargetFramework> | ||
| <ImplicitUsings>enable</ImplicitUsings> | ||
| <Nullable>enable</Nullable> | ||
| <IsAspireHost>true</IsAspireHost> | ||
| </PropertyGroup> | ||
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| <ItemGroup> | ||
| <PackageReference Include="Aspire.Hosting" Version="8.0.0-preview.1.23557.2" /> | ||
| </ItemGroup> | ||
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| <ItemGroup> | ||
| <ProjectReference Include="..\WorkerService\WorkerService.csproj" /> | ||
| </ItemGroup> | ||
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| </Project> |
10 changes: 10 additions & 0 deletions
10
docs/snippets/components/AspireApp/AspireApp.AppHost/Program.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,10 @@ | ||
| var builder = DistributedApplication.CreateBuilder(args); | ||
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| var database = builder.AddPostgresContainer("postgresql") | ||
| .AddDatabase("customers"); | ||
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| builder.AddProject<Projects.WorkerService>("workerservice") | ||
| .WithReference(database) | ||
| .WithReplicas(3); | ||
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| builder.Build().Run(); |
16 changes: 16 additions & 0 deletions
16
docs/snippets/components/AspireApp/AspireApp.AppHost/Properties/launchSettings.json
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,16 @@ | ||
| { | ||
| "$schema": "http://json.schemastore.org/launchsettings.json", | ||
| "profiles": { | ||
| "http": { | ||
| "commandName": "Project", | ||
| "dotnetRunMessages": true, | ||
| "launchBrowser": true, | ||
| "applicationUrl": "http://localhost:15021", | ||
| "environmentVariables": { | ||
| "ASPNETCORE_ENVIRONMENT": "Development", | ||
| "DOTNET_ENVIRONMENT": "Development", | ||
| "DOTNET_DASHBOARD_OTLP_ENDPOINT_URL": "http://localhost:16244" | ||
| } | ||
| } | ||
| } | ||
| } |
8 changes: 8 additions & 0 deletions
8
docs/snippets/components/AspireApp/AspireApp.AppHost/appsettings.Development.json
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,8 @@ | ||
| { | ||
| "Logging": { | ||
| "LogLevel": { | ||
| "Default": "Information", | ||
| "Microsoft.AspNetCore": "Warning" | ||
| } | ||
| } | ||
| } |
9 changes: 9 additions & 0 deletions
9
docs/snippets/components/AspireApp/AspireApp.AppHost/appsettings.json
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|---|---|---|
| @@ -0,0 +1,9 @@ | ||
| { | ||
| "Logging": { | ||
| "LogLevel": { | ||
| "Default": "Information", | ||
| "Microsoft.AspNetCore": "Warning", | ||
| "Aspire.Hosting.Dcp": "Warning" | ||
| } | ||
| } | ||
| } |
24 changes: 24 additions & 0 deletions
24
.../snippets/components/AspireApp/AspireApp.ServiceDefaults/AspireApp.ServiceDefaults.csproj
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| @@ -0,0 +1,24 @@ | ||
| <Project Sdk="Microsoft.NET.Sdk"> | ||
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| <PropertyGroup> | ||
| <OutputType>Library</OutputType> | ||
| <TargetFramework>net8.0</TargetFramework> | ||
| <ImplicitUsings>enable</ImplicitUsings> | ||
| <Nullable>enable</Nullable> | ||
| <IsAspireSharedProject>true</IsAspireSharedProject> | ||
| </PropertyGroup> | ||
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| <ItemGroup> | ||
| <FrameworkReference Include="Microsoft.AspNetCore.App" /> | ||
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| <PackageReference Include="Microsoft.Extensions.Http.Resilience" Version="8.0.0" /> | ||
| <PackageReference Include="Microsoft.Extensions.ServiceDiscovery" Version="8.0.0-preview.1.23557.2" /> | ||
| <PackageReference Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.7.0-alpha.1" /> | ||
| <PackageReference Include="OpenTelemetry.Extensions.Hosting" Version="1.7.0-alpha.1" /> | ||
| <PackageReference Include="OpenTelemetry.Instrumentation.AspNetCore" Version="1.6.0-beta.2" /> | ||
| <PackageReference Include="OpenTelemetry.Instrumentation.GrpcNetClient" Version="1.6.0-beta.2" /> | ||
| <PackageReference Include="OpenTelemetry.Instrumentation.Http" Version="1.6.0-beta.2" /> | ||
| <PackageReference Include="OpenTelemetry.Instrumentation.Runtime" Version="1.5.1" /> | ||
| </ItemGroup> | ||
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| </Project> |
119 changes: 119 additions & 0 deletions
119
docs/snippets/components/AspireApp/AspireApp.ServiceDefaults/Extensions.cs
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| @@ -0,0 +1,119 @@ | ||
| using Microsoft.AspNetCore.Builder; | ||
| using Microsoft.AspNetCore.Diagnostics.HealthChecks; | ||
| using Microsoft.Extensions.DependencyInjection; | ||
| using Microsoft.Extensions.Diagnostics.HealthChecks; | ||
| using Microsoft.Extensions.Logging; | ||
| using OpenTelemetry.Logs; | ||
| using OpenTelemetry.Metrics; | ||
| using OpenTelemetry.Trace; | ||
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| namespace Microsoft.Extensions.Hosting; | ||
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| public static class Extensions | ||
| { | ||
| public static IHostApplicationBuilder AddServiceDefaults(this IHostApplicationBuilder builder) | ||
| { | ||
| builder.ConfigureOpenTelemetry(); | ||
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| builder.AddDefaultHealthChecks(); | ||
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| builder.Services.AddServiceDiscovery(); | ||
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| builder.Services.ConfigureHttpClientDefaults(http => | ||
| { | ||
| // Turn on resilience by default | ||
| http.AddStandardResilienceHandler(); | ||
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| // Turn on service discovery by default | ||
| http.UseServiceDiscovery(); | ||
| }); | ||
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| return builder; | ||
| } | ||
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| public static IHostApplicationBuilder ConfigureOpenTelemetry(this IHostApplicationBuilder builder) | ||
| { | ||
| builder.Logging.AddOpenTelemetry(logging => | ||
| { | ||
| logging.IncludeFormattedMessage = true; | ||
| logging.IncludeScopes = true; | ||
| }); | ||
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| builder.Services.AddOpenTelemetry() | ||
| .WithMetrics(metrics => | ||
| { | ||
| metrics.AddRuntimeInstrumentation() | ||
| .AddBuiltInMeters(); | ||
| }) | ||
| .WithTracing(tracing => | ||
| { | ||
| if (builder.Environment.IsDevelopment()) | ||
| { | ||
| // We want to view all traces in development | ||
| tracing.SetSampler(new AlwaysOnSampler()); | ||
| } | ||
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| tracing.AddAspNetCoreInstrumentation() | ||
| .AddGrpcClientInstrumentation() | ||
| .AddHttpClientInstrumentation(); | ||
| }); | ||
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| builder.AddOpenTelemetryExporters(); | ||
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| return builder; | ||
| } | ||
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| private static IHostApplicationBuilder AddOpenTelemetryExporters(this IHostApplicationBuilder builder) | ||
| { | ||
| var useOtlpExporter = !string.IsNullOrWhiteSpace(builder.Configuration["OTEL_EXPORTER_OTLP_ENDPOINT"]); | ||
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| if (useOtlpExporter) | ||
| { | ||
| builder.Services.Configure<OpenTelemetryLoggerOptions>(logging => logging.AddOtlpExporter()); | ||
| builder.Services.ConfigureOpenTelemetryMeterProvider(metrics => metrics.AddOtlpExporter()); | ||
| builder.Services.ConfigureOpenTelemetryTracerProvider(tracing => tracing.AddOtlpExporter()); | ||
| } | ||
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| // Uncomment the following lines to enable the Prometheus exporter (requires the OpenTelemetry.Exporter.Prometheus.AspNetCore package) | ||
| // builder.Services.AddOpenTelemetry() | ||
| // .WithMetrics(metrics => metrics.AddPrometheusExporter()); | ||
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| // Uncomment the following lines to enable the Azure Monitor exporter (requires the Azure.Monitor.OpenTelemetry.Exporter package) | ||
| // builder.Services.AddOpenTelemetry() | ||
| // .UseAzureMonitor(); | ||
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| return builder; | ||
| } | ||
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| public static IHostApplicationBuilder AddDefaultHealthChecks(this IHostApplicationBuilder builder) | ||
| { | ||
| builder.Services.AddHealthChecks() | ||
| // Add a default liveness check to ensure app is responsive | ||
| .AddCheck("self", () => HealthCheckResult.Healthy(), ["live"]); | ||
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| return builder; | ||
| } | ||
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| public static WebApplication MapDefaultEndpoints(this WebApplication app) | ||
| { | ||
| // Uncomment the following line to enable the Prometheus endpoint (requires the OpenTelemetry.Exporter.Prometheus.AspNetCore package) | ||
| // app.MapPrometheusScrapingEndpoint(); | ||
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| // All health checks must pass for app to be considered ready to accept traffic after starting | ||
| app.MapHealthChecks("/health"); | ||
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| // Only health checks tagged with the "live" tag must pass for app to be considered alive | ||
| app.MapHealthChecks("/alive", new HealthCheckOptions | ||
| { | ||
| Predicate = r => r.Tags.Contains("live") | ||
| }); | ||
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| return app; | ||
| } | ||
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| private static MeterProviderBuilder AddBuiltInMeters(this MeterProviderBuilder meterProviderBuilder) => | ||
| meterProviderBuilder.AddMeter( | ||
| "Microsoft.AspNetCore.Hosting", | ||
| "Microsoft.AspNetCore.Server.Kestrel", | ||
| "System.Net.Http"); | ||
| } |
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